switch non-code content to the repo wiki? Or not?

see https://git.soton.ac.uk/SERG/workflow/-/wikis/home

added discuss label

changed the description

Hmmm maybe, but good to know that there are some important differences ...

Wikis are very convenient if you don’t want to keep your documentation in your repository, but you do want to keep it in the same project where your code resides.

You can create Wiki pages in the web interface or locally using Git since every Wiki is a separate Git repository.

https://docs.gitlab.com/ee/user/project/wiki/

Plus, there is some wiki-specific markdown ... https://docs.gitlab.com/ee/user/markdown.html#wiki-specific-markdown